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what happens if vitamin b12 injection goes in vein is a collapsed vein? » Ask Our Doctors (by JourneyPure) B12 Injections - Forever Young
Description
Sci Adv (2022) 8(22):eabm2510

its about making sure your body can actually use it

Neurologic complications can develop

IV infusion: for higher doses, given over 30 minutes to several hours

& Chang, X

When someone is truly deficient, the turnaround can be quick
